linux-kernel - Re: [PATCH 3.3-rc1] PM / Sleep: Fix read_unlock

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Date:	Mon, 23 Jan 2012 22:09:18 +0100
From:	"Rafael J. Wysocki" <rjw@...k.pl>
To:	"Srivatsa S. Bhat" <srivatsa.bhat@...ux.vnet.ibm.com>
Cc:	Tetsuo Handa <penguin-kernel@...ove.sakura.ne.jp>,
	"linux-kernel" <linux-kernel@...r.kernel.org>,
	Linux PM mailing list <linux-pm@...r.kernel.org>
Subject: Re: [PATCH 3.3-rc1] PM / Sleep: Fix read_unlock_usermodehelper() call.

On Monday, January 23, 2012, Srivatsa S. Bhat wrote:
> On 01/23/2012 10:19 AM, Tetsuo Handa wrote:
> 
> > Commit b298d289
> >  "PM / Sleep: Fix freezer failures due to racy usermodehelper_is_disabled()"
> > added read_unlock_usermodehelper() but read_unlock_usermodehelper() is called
> > without read_lock_usermodehelper() when kmalloc() failed.
> > 
> > Signed-off-by: Tetsuo Handa <penguin-kernel@...ove.SAKURA.ne.jp>
> > -----
> 
> 
> Acked-by: Srivatsa S. Bhat <srivatsa.bhat@...ux.vnet.ibm.com>

Applied.

Thanks,
Rafael


> > diff --git a/drivers/base/firmware_class.c b/drivers/base/firmware_class.c
> > index 26ab358..6c9387d 100644
> > --- a/drivers/base/firmware_class.c
> > +++ b/drivers/base/firmware_class.c
> > @@ -525,8 +525,7 @@ static int _request_firmware(const struct firmware **firmware_p,
> >  	if (!firmware) {
> >  		dev_err(device, "%s: kmalloc(struct firmware) failed\n",
> >  			__func__);
> > -		retval = -ENOMEM;
> > -		goto out;
> > +		return -ENOMEM;
> >  	}
> > 
> >  	if (fw_get_builtin_firmware(firmware, name)) {
> > 
> 
> 
> 

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